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A digital acoustic recording tag for measuring the response of wild marine mammals to sound
Definitive studies on the response of marine mammals to anthropogenic sound are hampered by the short surface time and deep-diving lifestyle of many species. A novel archival tag, called the DTAG,Expand
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Extreme diving of beaked whales
SUMMARY Sound-and-orientation recording tags (DTAGs) were used to study 10 beaked whales of two poorly known species, Ziphius cavirostris (Zc) and Mesoplodon densirostris (Md). Acoustic behaviour inExpand
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Beaked whales echolocate on prey
Beaked whales (Cetacea: Ziphiidea) of the genera Ziphius and Mesoplodon are so difficult to study that they are mostly known from strandings. How these elusive toothed whales use and react to soundExpand
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Foraging Blainville's beaked whales (Mesoplodon densirostris) produce distinct click types matched to different phases of echolocation
SUMMARY Blainville's beaked whales (Mesoplodon densirostris Blainville) echolocate for prey during deep foraging dives. Here we use acoustic tags to demonstrate that these whales, in contrast toExpand
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Deep-diving foraging behaviour of sperm whales (Physeter macrocephalus).
1. Digital tags were used to describe diving and vocal behaviour of sperm whales during 198 complete and partial foraging dives made by 37 individual sperm whales in the Atlantic Ocean, the Gulf ofExpand
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Biosonar performance of foraging beaked whales (Mesoplodon densirostris)
SUMMARY Toothed whales (Cetacea, odontoceti) emit sound pulses to probe their surroundings by active echolocation. Non-invasive, acoustic Dtags were placed on deep-diving Blainville's beaked whalesExpand
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The 20-Hz signals of finback whales (Balaenoptera physalus).
The 20-Hz signals of finback whales (Balaenoptera physalus) were analyzed from more than 25 years of recordings at a variety of geographic locations on near-surface hydrophones close to whales and onExpand
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Implications for marine mammals of large-scale changes in the marine acoustic environment
Abstract The amount of underwater sound from ship traffic, commercial, research, and military sound sources has increased significantly over the past century. Marine mammals and many other marineExpand
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MALE COMPETITION IN LARGE GROUPS OF WINTERING HUMPBACK WHALES
Fast moving groups containing three or more adult humpback whales are found in the winter on Silver Bank in the West Indies, and off Hawaii. Many of these groups have a definite structure: a centralExpand
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Echolocation clicks of free-ranging Cuvier's beaked whales (Ziphius cavirostris).
Strandings of beaked whales of the genera Ziphius and Mesoplodon have been reported to occur in conjunction with naval sonar use. Detection of the sounds from these elusive whales could reduce theExpand
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